Topic: Hornfels
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What are hornfel used for?
Decorative stone Read More »
Source: http://wiki.answers.com/Q/What_are_hornfel_used_for
What is made from hornfels?
hornfels is a rock or mineral Read More »
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Hornfels
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Highway Materials, Perkiomenville Quarry, Perkiomenville, PA
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Source: http://wiki.answers.com/Q/Where_is_hornfels_located
I too would like an answer to this question as it seems hornfels could be of varying grade dependant on the temperature. The facies of contact metamorphism progress in temperature at relatively low pressure from the Albite-Epidote Hornfels ...
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Source: http://wiki.answers.com/Q/What_is_the_grade_for_hornfels
( ′hör′felz ¦fā·shēz ) (petrology) Rock formed at depths in the earth's crust not exceeding 6.2 miles (10 kilometers) at temperatures of 250-800°C; includes albite-epidote hornfels facies, pyroxene-hornfels facies, and hornblende-hornfels f...
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(hôrn'fĕlz') n. , pl. , hornfels . A fine-grained metamorphic rock composed of quartz, feldspar, mica, and other minerals, formed by the action of intrusive rock upon sedimentary rock, especially shale. [German : Horn, horn; see hornblende ...
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Source: http://www.answers.com/topic/hornfels
( pə′lid·ik ′hörn′felz ) (petrology) A fine-grained metamorphic rock derived from pelite.
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Source: http://www.answers.com/topic/pelitic-hornfels
( ′bā·sik ′hörn′felz ) (petrology) A type of hornfels derived from a basic igneous rock.
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Source: http://www.answers.com/topic/basic-hornfels
